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Nickel 690 vs. EN AC-21100 Aluminum

Nickel 690 belongs to the nickel alloys classification, while EN AC-21100 aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is nickel 690 and the bottom bar is EN AC-21100 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 90
100 to 110
Elastic (Young's, Tensile) Modulus, GPa 200
71
Elongation at Break, % 3.4 to 34
6.2 to 7.3
Fatigue Strength, MPa 180 to 300
79 to 87
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 79
27
Tensile Strength: Ultimate (UTS), MPa 640 to 990
340 to 350
Tensile Strength: Yield (Proof), MPa 250 to 760
210 to 240

Thermal Properties

Latent Heat of Fusion, J/g 320
390
Maximum Temperature: Mechanical, °C 1010
170
Melting Completion (Liquidus), °C 1380
670
Melting Onset (Solidus), °C 1340
550
Specific Heat Capacity, J/kg-K 470
880
Thermal Conductivity, W/m-K 14
130
Thermal Expansion, µm/m-K 14
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.5
34
Electrical Conductivity: Equal Weight (Specific), % IACS 1.6
100

Otherwise Unclassified Properties

Base Metal Price, % relative 50
11
Density, g/cm3 8.3
3.0
Embodied Carbon, kg CO2/kg material 8.2
8.0
Embodied Energy, MJ/kg 120
150
Embodied Water, L/kg 290
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31 to 170
19 to 21
Resilience: Unit (Modulus of Resilience), kJ/m3 160 to 1440
300 to 400
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
46
Strength to Weight: Axial, points 21 to 33
31 to 33
Strength to Weight: Bending, points 20 to 27
36 to 37
Thermal Diffusivity, mm2/s 3.5
48
Thermal Shock Resistance, points 16 to 25
15

Alloy Composition

Aluminum (Al), % 0
93.4 to 95.7
Carbon (C), % 0 to 0.050
0
Chromium (Cr), % 27 to 31
0
Copper (Cu), % 0 to 0.5
4.2 to 5.2
Iron (Fe), % 7.0 to 11
0 to 0.19
Manganese (Mn), % 0 to 0.5
0 to 0.55
Nickel (Ni), % 58 to 66
0
Silicon (Si), % 0 to 0.5
0 to 0.18
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0
0.15 to 0.3
Zinc (Zn), % 0
0 to 0.070
Residuals, % 0
0 to 0.1